Technology Overview

Receptacles

Accu-Pak PCB-mountable receptacles provide exceptionally reliable PCB-to-PCB, PCB-to-Component, and PCB-to-Lead Wire interconnections. They mate easily with most standard blade types, square or round posts, male quick disconnects, and electronic component male terminals. They are available with Accu-Lok or Stable-Lok® mounting.

The receptacle shown at the right is unique in its ability to handle mating terminals with lateral misalignment of 0.012″ (0.30) and angular misalignment of ±10°.

Accu-Pak receptacles are available in many geometries. Vertical, horizontal, parallel, perpendicular and stacking PCB packaging configurations are easily accomplished.

For highly repeatable PCB-to-PCB, PCB-to-Component, PCB-to-Lead Wire, and auto fuse interconnections, Accu-Pak PCB mountable receptacles offer outstanding yet economical performance.

Featuring exclusive contact spring technology to withstand repeated mating cycles, Accu-Pak receptacles mate easily with standard male terminals, posts, and blade or fuse type terminals. Mating may be accomplished with 0.025″ (0.64mm), 0.045″ (1.14mm), 0.060″ (1.52mm), 0.062″ (1.27mm), and 0.090″ (2.29mm) square or round posts, for 0.031″ (0.79mm) x 0.062″ (1.27mm) rectangular posts and for 0.187″ (4.75mm), 0.205″ (5.21mm), and 0.250″ (6.35mm) male quick disconnect and electronic component male terminals, such as relays and switches.

Contact spring design ensures predictable mating forces and high resistance to permanent deformation. The monoform construction allows modular, low-cost connections.

Accu-Pak receptacles are available in many geometries to meet increasingly complex electronic packaging requirements. Vertical, horizontal, parallel, perpendicular and stacking PCB packaging configurations are possible. Options include Accu-Lok and Stable-Lok® mounting. PCB assembly can be done manually with Zierick hand tools, or automatically with Zierick semi- and fully-automated applicators.

Zierick’s Accu-Pak receptacles provide dependable connections and exhibit exceptional performance.
Accu-Pak receptacles withstand repeated mating, shock, vibration, and temperature cycling.
Accu-Pak receptacles are available in many geometries.

Accu-Pak receptacles are available in many geometries. Vertical, horizontal, parallel, perpendicular and stacking PCB packaging configurations are easily accomplished.

Terminal-to-PCB Retention

PCB-mountable quick disconnect terminals and receptacles with Stable-Lok® mounting provide maximum retention in wire-to-board, board-to-board, and component-to-board applications.
Developed to prevent PCB solder joint terminal damage, Stable-Lok® technology is now a standard design for reliable mounting. Continuous or loose terminals are available in sizes from 0.110″ (2.79mm) to 0.250″ (6.35mm). PCB mounting hole size tolerance may be as great as ±0.004″ (0.10mm), and all Stable-Lok® terminals are interchangeable with conventional quick disconnects. Also available in surface-mount or though-hole formats.

Zierick has increased the reliability of quick disconnect terminals with patented Stable-Lok® and Accu-Lok™ mounting. Designed to deliver greater terminal mounting strength, these particular unique features are available only from Zierick and are available on most standard Zierick quick disconnects.

Stable-Lok® PCB quick disconnects actually double terminal strength against fracture or mounting leg breakage. The Stable-Lok® concept shifts pivot points to outer mounting areas for a stabilizing resistive torque. Stable-Lok® terminals are available in 0.187″ (4.75mm), 0.205″ (5.21mm), and 0.250″ (6.35mm) application sizes.

Accu-Lok™ mounting is designed for 0.110″ (2.79mm) applications. With Accu-Lok™, PCB retention is not dependent on tight mounting hole tolerances. Instead, the terminal leg enters freely within the hole, with retention accomplished through a controlled splitting and forming of the leg. This eliminates stress and withstands repeated mating, withdrawal, and shock. Hole diameter tolerances may be as great as ±0.004″ (0.10mm) for either Accu-Lok™ or splay mounting types.

Zierick quick disconnects are manufactured to NEMA, UL and CSA specifications. They are available in vertical or horizontal configurations, loose or reeled. Assembly can be accomplished with Zierick hand tools or Zierick semi- and fully-automated applicators.

Zierick quick disconnect terminals are available in 0.110″ (2.79mm), 0.187″ (4.75mm), 0.205″ (5.21mm), and 0.250″ (6.35mm) sizes.
All brass terminals have a copper underplating for improved solderability over time.
Terminals are available in loose or reeled formats, and in vertical or horizontal configurations.
Stable-Lok® and Accu-Lok™ terminals mount securely in holes with a diameter tolerance of ±0.003″ (±0.076mm).
Stable-Lok® and Accu-Lok™ mounting reduces the instances of fractured or misaligned solder joints.
Assembly is achieved with Zierick semi- or fully-automatic applicators.

Solder-Wicking

Some of Zierick’s Accu-Pak connector line now feature optional NEW technology to prevent solder from wicking onto the internal contact areas during the wave solder process. Zierick’s TapeResist solder masking technology is a remarkable advancement for PCB assembly as it utilizes pre-applied 0.001″ (0.03mm) thick polyester film as the solder resist agent.

TapeResist allows stamped connectors to withstand internal solder wicking without the need for expensive, unsolderable selective plated finishes. Secondary plugging or taping operations are also eliminated. The TapeResist film is precision-applied via an exclusive stamping process which eliminates the secondary processing needed with selective plating.

TapeResist connectors are applied to the PCB and processed in the exact same manner as standard connectors. Once the terminal is placed and soldered, the TapeResist film remains in place. There is no need for specialized preparation or cleaning with TapeResist connectors.

Accu-Pak Connectors with TapeResist ensure reliable PCB-to-PCB, PCB-to-Component and PCB-to- Lead Wire interconnections, with top- or bottom-entry configurations. They mate easily with square, round, and rectangular terminals and posts, and are auto insertable. Connectors feature non-destructive beam motion, built-in overstress barriers and offer regular or high retention force configurations. Zierick’s exclusive Accu-Pak spring technology ensures predictable mating forces with ample stored energy. Accu-Pak Connectors are highly resistant to permanent deformation even when misaligned. Depending on the type of Accu-Pak you select, they are available with either Accu-Lok or Stable-Lok® shock and vibration proof mounting features, and may be assembled manually with Zierick hand tools or automatically with Zierick semi- and fully-automated applicator systems.

Zierick’s TapeResist solder-masking technology, available with all Accu-Pak receptacles, prevents solder from wicking onto internal contacts during PCB assembly. Consisting of a 0.001″ (0.03mm) thick polyester film that is pre-applied to the receptacle, TapeResist eliminates the labor associated with manual plugging or masking of boards prior to wave soldering.

Manual plugging or taping operations are eliminated with new solder resist.

TapeResist is a patented product of Zierick Manufacturing Corporation. U.S. Patent No. 5,495,669. Additional U.S. and international patents have been applied for.

Mechanical Hold-Down

For PCB pin/post applications, test points, receptacles, and quick disconnects, Zierick offers the exclusive Accu-Lok mounting method. Accu-Lok ends the need for tight mounting-hole tolerances. The terminal leg enters freely within the hole without producing stress, deformation, or warpage to the PCB. Hole diameter tolerances may be as great as ±0.004″ (0.10mm).

Accu-Lok‘s retentive mounting feature produces exceptional PCB assembly and interconnection integrity.

Zierick quick disconnect terminals are available in 0.110″ (2.79mm), 0.187″ (4.75mm), 0.205″ (5.21mm), and 0.250″ (6.35mm) sizes.
All brass terminals have a copper underplating for improved solderability over time.
Terminals are available in loose or reeled formats, and in vertical or horizontal configurations.
Stable-Lok® and Accu-Lok™ terminals mount securely in holes with a diameter tolerance of ±0.003″ (±0.076mm).
Stable-Lok® and Accu-Lok™ mounting reduces the instances of fractured or misaligned solder joints.
Assembly is achieved with Zierick semi- or fully-automatic applicators.

Harsh Environment IDC

The Torsion-Lok® IDC, winner of the PMA-Higgins Design Award, provides both insulation shear and a reliable connection in one motion. Initially designed for an automotive manufacturer, Torsion-Lok® IDC’s feature high-deflection contact beams to withstand repeated mating cycles and harsh conditions including high vibration and temperature cycling. They are available in loose and reeled formats for #30 AWG through #14 AWG wire sizes. Also available in surface mount or through-hole formats.

Unlike rigid contact beam styles, providing only one-time use, Torsion-Lok® beams operate well under the base material’s yield strength, thus allowing repeated mating.

Zierick’s award-winning Torsion-Lok® insulation displacement connector (IDC*) allows connection and insulation shear in one motion, eliminating pre-stripping. The Torsion-Lok® IDC received the PMA-Higgins Design Award based on its ability to deliver exceptional performance while saving costs.

Designed for rigorous PCB and wire-end connection requirements, Torsion-Lok® IDC’s outperform traditional rigid contact beam IDC styles. Unlike a rigid IDC, the Torsion-Lok® permits a high degree of movement by the connection contacts. This greater movement allows a contact beam deflection range that is many times greater than traditional IDC’s. Connection is achieved by simply pushing the wire into the high deflection, zero-clearance connection slot for a reliable, gas-tight connection.

The Torsion-Lok® design provides a predictable, pre-loaded connection force. The torsional beams provide ample stored energy and are highly resistant to permanent deformation and stress relaxation. The gas-tight interconnection is maintained without wire creep and slip. It withstands repeated mating cycles, vibration, and temperature cycling.

Zierick’s family of Torsion-Lok® IDC’s are available in loose and reeled formats for #30 through #14 AWG solid or stranded wire sizes. PCB and wire assembly can be done manually with Zierick hand tools and fixtures or automatically with Zierick semi- and fully-automated applicator systems.

The Torsion-Lok® IDC can be a cost-effective wire connection alternative.
Torsion-Lok® IDC’s provide superior performance compared to rigid contact beam IDC styles.
The high-deflection contact beam design withstands repeated mating cycles and harsh conditions.